Table 2.

Tyrosine decarboxylase (tyrDC) gene expression level for enterococcal strains grown in BHI Broth and BHI Broth added with 800 mg/l tyrosine during 72 h.

Time (h)	Log (copies/µg cDNA)
	Enterococcus faecalis EF37		E. faecalis ATCC 29212		E. faecium FC12		E. faecium FC643
	BHI	BHI + tyr	BHI	BHI + tyr	BHI	BHI + tyr	BHI	BHI + tyr
2	5.08 (±0.02)	4.79 (±0.06)	3.11 (±0.07)	2.60 (±0.08)	4.98 (±0.22)	3.91 (±0.18)	3.86 (±0.02)	2.79 (±0.02)
4	4.87 (±0.01)	6.11 (±0.02)	3.06 (±0.14)	3.25 (±0.02)	3.45 (±0.01)	3.49 (±0.07)	2.19 (±0.11)	2.65 (±0.01)
8	5.22 (±0.05)	5.03 (±0.05)	2.23 (±0.09)	2.07 (±0.09)	3.37 (±0.42)	2.98 (±0.19)	1.98 (±0.25)	0.98 (±0.34)
24	2.42 (±0.07)	4.15 (±0.05)	1.10 (±0.45)	1.61 (±0.17)	3.42 (±0.07)	4.61 (±0.24)	1.65 (±0.29)	0.84 (±0.06)
48	2.81 (±0.03)	3.38 (±0.03)	1.02 (±0.04)	1.83 (±0.01)	3.08 (±0.63)	4.37 (±0.02)	2.04 (±0.02)	1.24 (±0.02)
72	1.01 (±0.29)	4.10 (±0.12)	1.01 (±0.29)	1.61 (±0.02)	3.52 (±0.27)	3.47 (±0.68)	1.63 (±0.02)	1.11 (±0.20)